Author
J. B. Ward
Bio: J. B. Ward is an academic researcher. The author has an hindex of 1, co-authored 1 publications receiving 16 citations.
Papers
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01 Apr 1960-Transactions of The American Institute of Electrical Engineers. Part Iii: Power Apparatus and Systems
46 citations
01 Sep 1964
TL;DR: A classification that can be applied to all methods is presented, with theory and discussion of the important problems of acceleration of the solution, criteria for convergence and of the inherent difficulties that enable only general comparisons to be made between methods.
Abstract: The literature describing methods of analysis suitable for use with electronic digital computers in the power-system load-flow problem has grown until the papers can now be numbered in hundreds. This paper presents a classification that can be applied to all methods, with theory and discussion of the important problems of acceleration of the solution, criteria for convergence and of the inherent difficulties that enable only general comparisons to be made between methods. An extensive bibliography lists the more significant papers on the subject.
43 citations
TL;DR: An algorithm has been developed to form the bus admittance matrix Ybu, by forming the network through a step-by- step addition of a line or a passive element to the system, taking into account the mutual coupling between the elements.
Abstract: An algorithm has been developed to form the bus admittance matrix Ybu,, by forming the network through a step-by- step addition of a line or a passive element to the system, taking into account the mutual coupling between the elements. Two sets of formulas have been derived for the addition of a tree branch and for the addition of a link. This method eliminates the formation of incidence matrices and does not require singular or nonsingular transformations. This algorithm is very convenient for calculation in digital computers.
15 citations
TL;DR: In this paper, invariant transformations are derived for transforming from one set of open-path-closed-path relations to any other set of Open-Path-Closed-Path relations.
Abstract: The open-path-closed-path (mixed junction pair and mesh) relations derived in Part I1 are related by invariant transformations and their inverses to the open-path (junction pair) relations with reference ground and reference different from ground. Invariant transformations are also derived for transforming from one set of open-path-closed-path relations to any other set of open-path-closed-path relations. It is also demonstrated that the methods of Part I are applicable to general networks, with impedances and/or simple and complex autotransformers to ground. The immediate major application of the open-path-closed-path reference frame is in the area of total losses and incremental losses.
13 citations